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Chemistry, 22.06.2019 08:30
The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true
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Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 β 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
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Chemistry, 23.06.2019 05:00
1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt
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Chemistry, 23.06.2019 09:20
Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a dβ Π²-Π° β Ρ d-b-c-a
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